Effects of Salsola passerina shrub patches on the microscale heterogeneity of soil in a montane grassland, China
文献类型：期刊论文
| 作者 | Zheng, J.1,2; He, M.1; Li, X.1; Chen, Y.3; Li, X.1; Liu, L.1 |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 72期号:3页码:150-161 |
| 关键词 | geostatistic analysis montane grassland overgrazing soil properties |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2007.05.010 |
| 通讯作者 | Zheng, J.(zhengjinggang@sohu.com) |
| 英文摘要 | The spatial distributions of water and nutrients were examined in the desert grassland of Helan Mountain to test the hypothesis that the expansion of shrub patches in the grassland is associated with the degree of soil heterogeneity. The results showed that shrub patches significantly increase the water content and nutrient enrichment in surface soil (0-10 cm), and increase the microscale heterogeneity of the soil. Geostatistics analysis indicated that the autocorrelation distances of soil properties, such as water, total nitrogen (TN), organic matter (OM), and pH, are larger than the mean canopy size of Salsola passerina (30 +/- 12.3 cm), but less than in the control (enclosed) grassland. This suggests that the spatial distribution of soil properties may be associated with biotic processes in the shrub patch site. Furthermore, the smaller autocorrelation distances (65-382 cm) found for all soil properties indicate an increase in spatial heterogeneity, or potentially degradation, in the enclosed grassland. Based on these results, a conceptual model of montane grassland degradation processes following overgrazing was developed. (c) 2007 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SEMI-DESERT ECOSYSTEMS ; CHIHUAHUAN DESERT ; LIVESTOCK REMOVAL ; ARID ECOSYSTEMS ; NITROGEN ; PATTERNS ; MINERALIZATION ; VEGETATION ; DYNAMICS ; MESQUITE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000252672800003 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556028 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zheng, J. |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China 2.Xuchang Univ, Coll Urban Planning & Environm Sci, Xuchang 461000, Peoples R China 3.Henan Univ Sci & Technol, Coll Forestry, Luoyang 471003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, J.,He, M.,Li, X.,et al. Effects of Salsola passerina shrub patches on the microscale heterogeneity of soil in a montane grassland, China[J]. JOURNAL OF ARID ENVIRONMENTS,2008,72(3):150-161. |
| APA | Zheng, J.,He, M.,Li, X.,Chen, Y.,Li, X.,&Liu, L..(2008).Effects of Salsola passerina shrub patches on the microscale heterogeneity of soil in a montane grassland, China.JOURNAL OF ARID ENVIRONMENTS,72(3),150-161. |
| MLA | Zheng, J.,et al."Effects of Salsola passerina shrub patches on the microscale heterogeneity of soil in a montane grassland, China".JOURNAL OF ARID ENVIRONMENTS 72.3(2008):150-161. |
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来源：寒区旱区环境与工程研究所
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